Dormancy in Plants


Dormancy is a strategy of higher plants to survive adverse conditions by pausing growth and development, which can occur in different organs like seeds and buds. Dormancy is controlled both by genetic and environmental factors and most of our knowledge about its regulation has been obtained by studying seeds. Seed dormancy is an important adaptive trait in wild plants and has been under negative selection during domestication. The plant hormone abscisic acid has been shown to play a crucial role in the establishment and maintenance of dormancy, whereas gibberellins promote germination. Additional regulators include reactive oxygen species and epigenetic modifications. Large differences in seed dormancy have been found within species and the identification of the underlying genes revealed several novel genes that specifically regulate dormancy.

Key Concepts

  • Dormancy allows plants to hold life when conditions do not favour growth.
  • Dormancy is one of the main determinants of timing in the plant life cycle.
  • Dormancy is an adaptive trait with strong variation between and within plant species.
  • Dormancy is regulated both by (epi)genetic and environmental factors.
  • The plant hormone abscisic acid has a crucial role in the establishment and maintenance of dormancy.
  • Specific dormancy regulators show haplotype variation in nature.

Keywords: adaptation; after‐ripening; DELAY OF GERMINATION 1; domestication; dormancy; dormancy cycling; environment; epigenetic factors; plant hormones

Figure 1. Dormancy in plants. (a) Seed dormancy in Arabidopsis. The photos show dormant (left) and fully after‐ripened (right) seeds that were imbibed in the light for 3 days. (b) Bud dormancy in Magnolia. The photos show the same bud in a dormant (left) and nondormant (right) state. The photo on the left was taken on 3 February 2016 and the photo on the right on 30 March 2016 in Dansweiler, Germany.
Figure 2. Dormancy in a worldwide population. Dormancy levels in a collection of natural accessions of Arabidopsis. Dormancy is expressed as an after‐ripening requirement (the number of days of seed dry storage required to reach 50% of germination; DSDS50).
Figure 3. Preharvest sprouting in a barley field in the Netherlands observed on 1 September 2010. Seeds attached to their mother plant have germinated due to a combination of low dormancy and high humidity.
Figure 4. Schematic representation of the expression of the DELAY OF GERMINATION 1 (DOG1) gene in different plant tissues. (a) DOG1 expression is presented on the Arabidopsis developmental map. Data retrieved from the Arabidopsis eFP browser at (Winter et al., ). (b) DOG1 expression in presented on the Arabidopsis time series microarrays. Data retrieved from the Wageningen Seed Lab eFP Browser at (Dekkers et al., 2013).


Ali‐Rachedi S, Bouinot D, Wagner MH, et al. (2004) Changes in endogenous abscisic acid levels during dormancy release and maintenance of mature seeds: studies with the Cape Verde Islands ecotype, the dormant model of Arabidopsis thaliana. Planta 219: 479–488.

Alonso‐Blanco C, Bentsink L, Hanhart CJ, Blankestijn‐de Vries H and Koornneef M (2003) Analysis of natural allelic variation at seed dormancy loci of Arabidopsis thaliana. Genetics 164: 711–729.

Amiguet‐Vercher A, Santuari L, Gonzalez‐Guzman M, et al. (2015) The IBO germination quantitative trait locus encodes a phosphatase 2C‐related variant with a nonsynonymous amino acid change that interferes with abscisic acid signaling. New Phytologist 205: 1076–1082.

Ashikawa I, Mori M, Nakamura S and Abe F (2014) A transgenic approach to controlling wheat seed dormancy level by using Triticeae DOG1‐like genes. Transgenic Research 23: 621–629.

Arc E, Sechet J, Corbineau F, Rajjou L and Marion‐Poll A (2013) ABA crosstalk with ethylene and nitric oxide in seed dormancy and germination. Frontiers in Plant Science 4: 63.

Bassel GW, Lan H, Glaab E, et al. (2011) Genome‐wide network model capturing seed germination reveals coordinated regulation of plant cellular phase transitions. Proceedings of the National Academy of Sciences of the United States of America 108: 9709–9714.

Baskin CC and Baskin JM (2014) Seeds: Ecology, Biogeography and Evolution of Dormancy and Germination. San Diego: Academic Press.

Bazin J, Langlade N, Vincourt P, et al. (2011) Targeted mRNA oxidation regulates sunflower seed dormancy alleviation during dry after‐ripening. Plant Cell 23: 2196–2208.

Bentsink L, Jowett J, Hanhart CJ and Koornneef M (2006) Cloning of DOG1, a quantitative trait locus controlling seed dormancy in Arabidopsis. Proceedings of the National Academy of Sciences of the United States of America 103: 17042–17047.

Cao Y, Dai Y, Cui S and Ma L (2008) Histone H2B monoubiquitination in the chromatin of FLOWERING LOCUS C regulates flowering time in Arabidopsis. Plant Cell 20: 2586–2602.

Chibani K, Ali‐Rachedi S, Job C, et al. (2006) Proteomic analysis of seed dormancy in Arabidopsis. Plant Physiology 142: 1493–1510.

Corbineau F, Xia Q, Bailly C and El‐Maarouf‐Bouteau H (2014) Ethylene, a key factor in the regulation of seed dormancy. Frontiers in Plant Science 5: 539.

Daviere JM and Achard P (2013) Gibberellin signaling in plants. Development 140: 1147–1151.

Debieu M, Tang C, Stich B, et al. (2013) Co‐variation between seed dormancy, growth rate and flowering time changes with latitude in Arabidopsis thaliana. PLoS One 8: e61075.

Dekkers BJ, Pearce S, van Bolderen‐Veldkamp RP, et al. (2013) Transcriptional dynamics of two seed compartments with opposing roles in Arabidopsis seed germination. Plant Physiology 163: 205–215.

Finch‐Savage WE and Leubner‐Metzger G (2006) Seed dormancy and the control of germination. New Phytologist 171: 501–523.

Footitt S, Douterelo‐Soler I, Clay H and Finch‐Savage WE (2011) Dormancy cycling in Arabidopsis seeds is controlled by seasonally distinct hormone‐signaling pathways. Proceedings of the National Academy of Sciences of the United States of America 108: 20236–20241.

Footitt S, Muller K, Kermode AR and Finch‐Savage WE (2015) Seed dormancy cycling in Arabidopsis: chromatin remodelling and regulation of DOG1 in response to seasonal environmental signals. Plant Journal 81: 413–425.

Graeber K, Linkies A, Steinbrecher T, et al. (2014) DELAY OF GERMINATION 1 mediates a conserved coat‐dormancy mechanism for the temperature‐ and gibberellin‐dependent control of seed germination. Proceedings of the National Academy of Sciences of the United States of America 111: E3571–E3580.

Hilhorst HWM (1998) Seed dormancy. Seed Science Research 7: 221–223.

Job C, Rajjou L, Lovigny Y, Belghazi M and Job D (2005) Patterns of protein oxidation in Arabidopsis seeds and during germination. Plant Physiology 138: 790–802.

Kendall SL, Hellwege A, Marriot P, et al. (2011) Induction of dormancy in Arabidopsis summer annuals requires parallel regulation of DOG1 and hormone metabolism by low temperature and CBF transcription factors. Plant Cell 23: 2568–2580.

Kendall S and Penfield S (2012) Maternal and zygotic temperature signalling in the control of seed dormancy and germination. Seed Science Research 22: S23–S29.

Koornneef M and van der Veen JH (1980) Induction and analysis of gibberellin sensitive mutants in Arabidopsis thaliana (L.) Heynh. Theoretical and Applied Genetics 58: 257–263.

Lin SY, Sasaki T and Yano M (1998) Mapping quantitative trait loci controlling seed dormancy and heading date in rice, Oryza sativa L., using backcross lines. Theoretical and Applied Genetics 96: 997–1003.

Liu YX, Koornneef M and Soppe WJJ (2007) The absence of histone H2B monoubiquitination in the Arabidopsis hub1 (rdo4) mutant reveals a role for chromatin remodeling in seed dormancy. Plant Cell 19: 433–444.

Liu YX, Geyer R, van Zanten M, et al. (2011) Identification of the Arabidopsis REDUCED DORMANCY 2 Gene Uncovers a Role for the Polymerase Associated Factor 1 Complex in Seed Dormancy. PLoS One 6: e22241.

Muller K, Bouyer D, Schnittger A and Kermode AR (2012) Evolutionarily conserved histone methylation dynamics during seed life‐cycle transitions. PLoS One 7: e51532.

Nakabayashi K, Bartsch M, Xiang Y, et al. (2012) The time required for dormancy release in Arabidopsis is determined by DELAY OF GERMINATION 1 protein levels in freshly harvested seeds. Plant Cell 24: 2826–2838.

Nakamura S, Abe F, Kawahigashi H, et al. (2011) A wheat homolog of MOTHER OF FT AND TFL1 acts in the regulation of germination. Plant Cell 23: 3215–3229.

Nambara E and Marion‐Poll A (2003) ABA action and interactions in seeds. Trends in Plant Science 8: 213–217.

Oracz K, El‐Maarouf Bouteau H, Farrant JM, et al. (2007) ROS production and protein oxidation as a novel mechanism for seed dormancy alleviation. Plant Journal 50: 452–465.

Rodríguez M, Barrero JM, Corbineau F, Gubler F and Benech‐Arnold RL (2015) Dormancy in cereals (not too much, not so little): about the mechanisms behind this trait. Seed Science Research 25: 99–119.

Sugimoto K, Takeuchi Y, Ebana K, et al. (2010) Molecular cloning of Sdr4, a regulator involved in seed dormancy and domestication of rice. Proceedings of the National Academy of Sciences of the United States of America 107: 5792–5797.

Vaistij FE, Gan Y, Penfield S, et al. (2013) Differential control of seed primary dormancy in Arabidopsis ecotypes by the transcription factor SPATULA. Proceedings of the National Academy of Sciences of the United States of America 110: 10866–10871.

Wang Z, Cao H, Sun Y, et al. (2013) Arabidopsis paired amphipathic helix proteins SNL1 and SNL2 redundantly regulate primary seed dormancy via abscisic acid‐ethylene antagonism mediated by histone deacetylation. Plant Cell 25: 149–166.

Winter D, Vinegar B, Nahal H, et al. (2007) An “Electronic Fluorescent Pictograph” browser for exploring and analyzing large‐scale biological data sets. PLoS One 2: e718.

Xi W, Liu C, Hou X and Yu H (2010) MOTHER OF FT AND TFL1 regulates seed germination through a negative feedback loop modulating ABA signaling in Arabidopsis. Plant Cell 22: 1733–1748.

Xiang Y, Nakabayashi K, Ding J, et al. (2014) REDUCED DORMANCY 5 encodes a protein phosphatase 2C that is required for seed dormancy in Arabidopsis. Plant Cell 26: 4362–4375.

van Zanten M, Zoll C, Wang Z, et al. (2014) HISTONE DEACETYLASE 9 represses seedling traits in Arabidopsis thaliana dry seeds. Plant Journal 80: 475–488.

Further Reading

Cooke JEK, Eriksson ME and Junttila O (2012) The dynamic nature of bud dormancy in trees: environmental control and molecular mechanisms. Plant, Cell & Environment 35: 1707–1728.

Gazzarrini S and Tsai AYL (2015) Hormone cross talk during seed germination. Essays in Biochemistry 58: 151–164.

Graeber K, Nakabayashi K, Miatton E, Leubner‐Metzger G and Soppe WJJ (2012) Molecular mechanisms of seed dormancy. Plant, Cell & Environment 35: 1769–1786.

Nonogaki H (2014) Seed dormancy and germination – emerging mechanisms and new hypotheses. Frontiers in Plant Science 5: 233.

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How to Cite close
Soppe, Wim JJ, and Bentsink, Leónie(Aug 2016) Dormancy in Plants. In: eLS. John Wiley & Sons Ltd, Chichester. [doi: 10.1002/9780470015902.a0002045.pub2]